<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      class App {
        // 实例
        temp = this
        handleClick = () => {
          console.log(this.state.count)
        }
      }
      const app = new App()
      console.log(app.temp === app)
    </script>
  </body>
</html>
